fenby



(No Model.) 7 I J. PENBY..- METHOD OF SUPPLYING OIL T0 LAMPS,-

No. 425,667. Patented Apr. 15, 1890.

UNITED STATES PATENT OFFICE.

JOSEPH BEVERLEY FENBY, OF SUTTON OOLDFIELD, COUNTY OF \VARVICK, ENGLAND.

METHOD OF- SUPPLYING O lL TO LAMPS.

SPECIFICATION forming part of LettersPatent No. 425,667, dated April 15, 1890.

Application filed April 29,1889, Sen'al No. 309,068. (No model.) Patented in England May 24, 1888, No. 7,616, and August 28, 1888, No. 12,345; in BelgiumApril 11,1889,1l'0.85,797; in France April1l,1889,1 l'0.197,403; in Germany April 12,1889, No. 49,715; in Victoria. May 13,1889, No. 6,747: in South Australia May 16, 1889,110. 1,305 in New South Wales May 18, 1889,11'0, 1,423; in Queensland May 23, 1889,1To. 749; in Spain June 25, 1889,1l0. 9,502; in India J'nly 11/31, 1889,110. 125; in Italy July 16, 1889, L, 112, and in Austria-Hungary September 27,1889,N0.17,243 and No. 31,391.

To all whom it may concern:

Be it known that I, JosEPH BEVERLEY FENBY, a citizen of England, residing at Sutton Coldfield, in the county of lVarwick, England, have invented a new and useful Method of Supplying Oil for Lamps at Different Levels, (for which I have obtained Letters Patent in Great Britain, dated May 24, 1888, No, 7,616, and August 28, 1888, No. 12,345; in Bel- Io gium, dated April 11, 1889, No. 85,797; in France, dated April 11, 1889, No. 197,403; in Germany, dated April 12, 1889, No. 49,715; in Spain, dated June 25, 1889,No. 9,502; in Italy, dated July 16,1889, Vol. L, No. 112; in Aus- 15 tria-Hungary, dated September 27, 1889, No. 17,243 and No. 31,391; in India, dated July 11/31, 1889, No. 125; in Victoria, dated May 13, 1889, No. 6,747; in South Australia, dated May 16, 1889, No. 1,305; in New South WVales,

dated May 16, 1889,No. 1,423, and in Queensland, dated lWIay 23 and September 18, 1889, No. 749,) of which the following is a specification.

My invention relates to a method of supply- 2 5 ing oil to lamps at different levels, whether these be public lamps in various quarters of a town or lamps for lighting or heating in apartments on the various floors of a house or other building. In carrying out such a 0 system it is necessary in the first place to have the oil supplied under sufficient pressure to command the highest level where it is to be consumed, this pressure being obtained either by drawing the oil from an elevated cistern or by forcing the oil up a supply-pipe by water-pressure, air-pressure, pumping, or other means. Between the oil-supply pipe and the lamps in which the oil is consumed I inter- .pose a liquid-pressure regulator consisting of an oil-vessel having in it a cup or basin containing mercury, in which is immersed the open end of the oil-pipe, the depth of its immersion being so adjusted that oil passes from the pipe up through the mercury only when the oil in the vessel is below its normal level.

In thisway the oil is maintained at a constant level in the vessel and in the lamps,

which are directly supplied from it. There may be such a regulator for every separate lamp, or one regulator may be applied to a number of lamps which are all the same level. The immersion of the oil-pipe in the mercury is adjusted automatically by means of a float on the oil, which increases the immersion when the level of the oil rises in the vessel and lessens the immersion when the level sinks.

Although I have mentioned mercury as the liquid employed in the presslire-regulators, obviously other liquids heavier than oil might be employed, mercury being most convenient on account of the moderate depth occupied by a column of it sufficient to balance that of the oil.

Such being the general character of my invention, I shall describe the apparatus which I employ for carrying it out in practice, referring to the accompanying drawings, this apparatus forming the subject of a separate application for patent of even date herewith, Serial No. 309,660.

Figure l is a diagram illustrating the means of supplying a number of lamps at two difierent levels, which may be different floors of a building. Fig. 2 is a section of'one form of self-adjusting regulator, such as is'indicated at R in Fig. 1. Fig. 3 is a section of a modified form of regulator, such as is indicated at R in Fig. 1.

Referring first to Fig. 1,A is the main pipe for supplying oil either from a reservoir above or from a reservoir below, from which it is forced up. The oil issues from the pipe A into the regulator R which is shown in detail by Fig. 3. In this regulator the oil is 8 5 maintained at the proper level for the lamps L of the uppermost row, which all communicate with the oil-vessel of the regulator R by a pipe 13. From the oil-vessel of the regulator R a pipe D descends to a regulator R such as is shown in detail by Fig. 2, and this determines the level of oil in the lamps L.

Although in Fig. 1 I have shown the regulators R R as being employed inparticular places, this is only by way of illustration, as either one of these regulators may be used in any part of the system.

In Fig. 2 the oil-vessel E has within it the 5 mercury-vessel M, suspended from the lever of a float N. According as the level of the oil in E rises or sinks, raising or lowering the float N, the mercury-cup M is raised orlowered, giving to the end of the oil-pipe D ,ro greater or less immersion in the mercury.

In Fig. 3 the lever' of the float N has suspended from it a displacing-plunger P, which, on being lowered or raised by the action of the float, raises or lowers the level of the mer- 15 cury in the vessel M, thereby giving to the end of the oil-pipe A greater or less im mersion.

I do not broadly claim controlling the supply of oil to a lamp by a liquid-pressure regulator, as such of itself does not constitute my 20 invention.

Having thus described the nature of my invention and the best means I know for carrying the same into practical effect, I claim- A The method herein described of supplying oil to lamps at different levels, which consists in interposing between afmain supply-pipe and each lamp a body of oil and a body of mercury placed in such oil, into which mercury the lower open extremity of an oil-pipe dips, adjusting the immersion of said lower open end of the pipe by a float resting on the Patent Agent, 28 Southampton Buildings,

London, 1 1 C JNo. RJVLMILLARD, Clerk to .Messrs. Abel ct: Imray, Uonsult'lng Engineers and Patent Agents, 28 South: ampton Buildings, London, VV. 0. i I 

